The design that I published here is with safety factor of 3, all beams are with stainless steel, and withstand the weather.The design is unique and complex, however easy to be manufactured, easy in storage, and could take 10 minute in assembly. Some trusses are made with steel sheet, therefore should be manufactured in cutting laser or waterJet, and finally bended. The section of the frame is 20 x 20 mm.The stand can be adjustable in the height and length.All fastener and dimensions are in Metric unit.